gcc32 -o foo ... -lg2c fails since compat-gcc-32 doesn't provide libg2c.so
I am not sure what is the best solution here (sadly forcing the users to get
their act together and moving to something recent isn't an option), providing
compat-g77-32 with the full(?) g77 stack is one option and the other is to use
the existing /usr/lib/libg2c.so.0 assuming libg2c hasn't changed at all.
The users are only interested in linking from gcc-32 with libg2c and not a
g77-32 so compat-libf2c is probably an option.